What are the torque specifications for a Chevy?
Small Block Chevy Torque Specs
| Fastener Type | Torque Spec |
|---|---|
| Cam Sprocket Bolts | 18-20 ft.-lbs. |
| Harmonic Damper Bolt | 60 ft.-lbs. |
| Flywheel/Flexplate Bolts | 65 ft.-lbs. |
| Pressure Plate Bolts | 35 ft.-lbs. |
How do you torque big block Chevy heads?
The following specs apply to: Gen IV, Big Block Chevy. Mark V, Big Block Chevy….Big Block Chevy Torque Specs.
| Fastener Type | Torque Specs |
|---|---|
| Cylinder Head Bolts, Long | 75 ft.-lbs. |
| Cylinder Head Bolts, Short | 65-68 ft.-lbs. |
| Screw-In Rocker Arm Studs | 50 ft.-lbs. |
| Intake Manifold Bolts (Cast Iron Head) | 25 ft.-lbs. |
What are the torque specs for a 454 Chevy?
Always torque bolts in three equal increments
| Bolts or Parts | Lube or Sealer | Torque to: |
|---|---|---|
| Main Caps 396-427 (2 bolt) | Engine Oil | 95 ft-lbs. |
| Main Caps 396-454 (4 bolt) Inner and Outer bolts | Engine Oil | 110 ft-lbs. |
| 3/8 Connecting Rod Cap | Engine Oil | 50 ft-lbs. |
| 7/16 Connecting Rod Cap | Engine Oil | 70 ft-lbs. |
What is the torque on the flywheel bolts?
Tighten all bolts evenly, ΒΌ turn at a time in a crisscross pattern until flywheel is completely drawn-up to the crankshaft. Torque all bolts in 3 steps: First to 25 ft/lbs. then 60 ft/lbs. Final torque to: 78 – 80 ft/lbs.
How much torque does a 350 engine have?
380 pound-feet
Chevy 350 Engine Specs Rated at up to 380 pound-feet of torque, this engine is great for towing; however, fuel economy is low and — depending on the compression ratio — it might require premium fuel.
Are big-block Chevy head bolts reusable?
SBC bolts are re-usable unless you can see a defect re-use them and dont worry about it.
How much power does a 454 make?
How Much Hp Does A 454 Big Block Have? At 330 horsepower and 475 pound feet of torque, the 454 was quite impressive. For a truck-based engine with Torque, it wasn’t unreasonable to expect over 500 pounds per square inch, even though it still offered plenty of power.
How do you torque heads on a 350 Chevy?
How to Tighten 350 Chevy Heads
- Stand facing the head you are tightening.
- Mark the top row of head bolts, using a wax marker, starting with the leftmost bolt.
- Attach a socket matching the size of your 350 Chevy’s head bolts to a torque wrench.
- Set the torque wrench to 65 foot-pounds.
What kind of engine does a Chevy 396 have?
Chevrolet 396 V8 Engine The Chevy 396 V8 was a very important step forward for GM in the battle of the 60s era muscle cars. Pontiac, Oldsmobile and Buick had drawn a lot of attention in 1964 with such muscle cars as the GTO and 442.
How much horsepower does a L-79 396 have?
With a four-barrel carb, it produced 375 horsepower and 420 ft.-lbs. of torque. The L-79 396 featured 425 horsepower and 415 ft.-lbs. of torque.
Why buy a 1964 Chevy 396 V8?
The Chevy 396 V8 was a very important step forward for GM in the battle of the 60s era muscle cars. Pontiac, Oldsmobile and Buick had drawn a lot of attention in 1964 with such muscle cars as the GTO and 442.
When did Chevy stop making the 396?
Chevy phased out the 396 in 1969. Chevy developed three versions of the 396 in 1965: a four-barrel carburetor model, the Z-16 with a high compression ratio (also produced in 1966) and the L-79, which was only produced for 1965. The four-barrel carburetor version had a 4.094-inch bore and 3.76-inch stroke.